Turns out the festival was part of a larger comic book/action hero/collectibles fair called WonderCon. We checked it out after the movie, and it was the the nerdiest event I've ever attended.
So without further preamble, here is the coolest/nerdiest picture ever:
William showing his new iPad to stormtroopers
A few other images from Wondercon:
OMG Batman has a lightsaber
Princess Leia is bored
Lots of comic books
Raking in the cash with Mario
Who is this guy and why are people taking his picture?
A suprising number of women at Wondercon...
but many of them look like this.
